FOREST NOTES 903 



exhibit attracted such favorable atten- better shingle nail. It is extremely 



tion that the Association adopted a foolish to use a five-year nail in putting 



resolution commending the exhibit, on a thirty-year shingle. 



Special exhibits of unusual interest 



were obtained from the U. S. Forest President Henry Landes, of the 



Products Laboratory at Madison, Wis., University of Washington, in his yearly 



from the New York Central, the Erie, report of the institution recommends 



the Lackawanna and Pennsylvania rail- the establishment of a complete forest 



roads, the Barrett Manufacturing Com- products laboratory at the State Uni- 



pany, the Eppinger & Russell Company, versity. This recommendation will be 



the Grasselli Chemical Company and the presented to the legislature at the 



U. ^S. Wood Preserving Company and session this winter. An estimate of 



others. At the close of the meeting $50,000 is made of the cost of the 



this exhibit was transferred to Syracuse establishment of such a laboratory. 



where it will be displayed for a week in ■ 



the rooms of the Technology Club of w. W. Colton Forest Commissioner 

 Syracuse. of West Newton, Mass., writes: "The 

 ' principal forestry problem facing us 

 Prof. R. R. Chaffee, of the Pennsyl- here is the controlling of the Gypsy and 

 vania State College Department of Brown Tail Moth pest. We have an 

 Forestry, has undertaken a shingle ex- area of 18 square miles, all of which is 

 periment which he is desirous to have fairly well settled, Newton being a 

 show two things, first, the durability of wealthy residential section near Boston, 

 different kinds of shingle nails and in We are confronted with a large number 

 turn the increased life of the shingle, of small areas of woodland which are, 

 second, the chemical effects of the nail unfortunately for us, made up mostly of 

 upon the shingle, and a thing of perhaps oak growth, this oak growth being the 

 minor consideration, that of careful choicest food plant of the gypsy and 

 nailing, paying particular attention to brown tail moths which naturally makes 

 the number of nails to the shingle and it much harder to care for. Most of 

 the total ntmiber of nails to each hun- these groves surround beautiful rcsi- 

 dred square feet. He already has one dences, making it particularly essential 

 roof, with a north and a south exposure, that they be properly cared for and pre- 

 laid with western Red Cedar shingles, served. Where it is possible, these 

 using five different kinds of nails, groves are thinned and the production 

 namely, pure copper, pure zinc, zinc- of more resistant species encouraged, 

 clad nails, the ordinary wire shingle The remainder are cared for by the 

 nail, and the blue-cut nail. He is usual methods of winter treatment of 

 making arrangements to lay another egg clusters and spring and stmimer 

 roof with both Red Cedar and Cypress spraying with arsenate of lead. The 

 and introducing two other kinds of city owns and operates seven high- 

 shingle nails, namely, copper-coated power sprayers, one small power sprayer 

 and lead-coated nails. He is making and ten barrel sprayers. The past 

 as thorough an investigation as possible simimer we used forty tons of arsenate 

 of the nails from different companies, of lead in our spraying operations. The 

 paying particular attention to zinc- flight of brown tail moths this summer 

 coated nails and using in this connection was very light in Newiion as a conse- 

 both the Preece copper sulphate im- quence of which we have very little 

 mersion test and the caustic soda test work to be done on this pest this 

 for determining thickness of coat and winter. The gypsy moth is about the 

 the thoroughness of application. Mr. same as usual, being scarce when thor- 

 J. R. Morehead, Secretary of the South- ough spraying was done and plentiful 

 western Lumbermen's Association, has where the work was neglected. It is 

 been of material assistance in furnishing probable that by the end of December 

 material and information. He, for a we will have expended $39,000 for the 

 long time, has been trying to find a suppression of these pests alone." 



